2006 Chevrolet Trailblazer Ext

The subject vehicles are model year (MY) 2002-2009 Chevrolet Trailblazer, GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2005-2009 Saab 9-7X, 2002-2004 Oldsmobile Bravada, 2003-2006 Chevrolet SSR, 2005-2009 Buick Lacrosse, and 2006-2008 Pontiac Grand Prix. This scope includes the Trailblazer/Envoy variants: 2002-2006 Envoy XL/Trailblazer EXT and 2004-2005 Envoy XUV. The original scope of this investigation was expanded to include all vehicles equipped with the subject Headlight Driver Module (HDM). The focus of the investigation was to determine whether actions performed by General Motors adequately addressed any unreasonable risk to motor vehicle safety in the subject vehicles concerning the headlights and the HDM that controls them.Under normal electrical load and environmental conditions, the HDM can overheat inside the Underhood Electrical Center (UEC). This can cause the module to fail and result in a simultaneous loss of both low beam headlights and both daytime running lights (DRLs), often with no warning or prior detectability to the driver. This failure can be intermittent or permanent. No other exterior lights are affected. High beams, turn signals, brake lights, and reverse lights are still operational.General Motors addressed this issue with 2 recalls (14V755 & 15V519) and a special coverage program (N172091910). In view of the recalls and special coverage program implemented by GM and the vehicle high beams continuing to operate, ODI has tentatively concluded that the actions taken by GM mitigate any unreasonable risk to safety posed by HDM failure in the subject vehicles.Accordingly, the investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take additional action if warranted by new circumstances.The ODI reports cited above are available for review online at NHTSA.gov under the identification numbers in the attached document.

On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. The recall remedy requires the inspection and repair or replacement of the master power window switch, which GM refers to as a driver door module (DDM). At the same time, GM implemented a special coverage program to replace failed DDMs for vehicles registered outside of these states. ODI was not satisfied with GM's exclusion of non-salt belt vehicles and continued its investigation. On June 13, 2013, GM submitted a related recall notification (13V-248) to reclassify the initial special coverage program into a safety recall for vehicles that were not previously repaired under special coverage.The Office of Defects Investigation (ODI) opened Engineering Analysis EA12-004 on June 11, 2012 to further investigate allegations of DDM thermal incidents in model year (MY) 2006-2007 Chevrolet Trailblazer vehicles. Thermal incidents involve cases where fire-related events such as smoke and melt are present. ODI has received 170 reports alleging a thermal event occurred. Complainants stated that the DDM melted and in some cases produced odor and/or smoke. Fourteen of these incidents led to a fire where visible flames were reported or the damage extended significantly beyond the DDM. In addition to the 170 reports listed above, ODI received 63 reports alleging the DDM acted erratically or became inoperative. In response to ODI's Information Request (IR), GM provided 619 unique consumer complaints that related to the alleged problem. Seventy-seven of those reports led to a fire with flame, and 4 reported injuries of smoke inhalation and/or slight burns from contact with hot switches. GM also submitted 20,400 warranty claims for replacement of the DDM, most of which involved inoperative switches. The problem condition is caused by fluids, such as rain water, entering the driver's door module and subsequently causing corrosion that could result in an electrical short in the printed circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. However, the electrical short may also cause overheating that could melt components of the door module, producing odor, smoke or in some cases fire with flame. The circuit board was redesigned and GM implemented the new design into vehicle production on May 14, 2007. All failures cited above occurred in vehicles produced before this build date (i.e., with the original design DDM). GM also reported that all MY 2006-2007 GMT360/370 platform vehicles and MY 2005 SAAB 9-7x vehicles utilized the same DDM and therefore ODI expanded the subject population to include these vehicles.This investigation is closed on the basis of GM's announcement of safety recalls 12V-406 and 13V-248. The ODI complaints cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, see the attached list for ODI numbers.

The Office of Defects Investigation (ODI) opened this investigation on February 9, 2012 in response to complaints alleging driver door module melting and/or burning in MY 2006-2007 Chevrolet Trailblazers. In response to ODI's Information Request letter, General Motors presented 167 reports and 698 warranty claims that related to the alleged problem. ODI has received a total of 83 complaints, 66 alleging the door module had melted or burned, and the remaining 17 stating that the window switches acted erratically or were inoperative. Twenty-eight of the reports received have led to driver door fires, some of which allege the vehicle was keyed off and unattended. Based on the agency's current analysis, ODI has upgraded its investigation to an Engineering Analysis (EA12-004) to determine whether the subject vehicles contain a defect that presents an unreasonable risk to safety.The vehicle models and production dates of affected vehicles will be evaluated, particularly other GMT360 vehicles. The ODI reports cited above can be reviewed online at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers: 10247838, 10260600, 10274337, 10275626, 10284010, 10396958, 10406203, 10409023, 10414691, 10417938, 10423865, 10426281, 10434446, 10445657, 10447754, 10447757, 10447770, 10447788, 10447813, 10447831, 10447865, 10447880, 10447892, 10447938, 10447994, 10447996, 10447997, 10448028, 10448086, 10448138, 10448176, 10448201, 10448337, 10448455, 10448464, 10448478, 10448540, 10448900, 10448941, 10449150, 10449166, 10449169, 10449236, 10449722, 10450055, 10450202, 10450284, 10451584, 10451878, 10451918, 10452197, 10452301, 10452586, 10452743, 10452895, 10453161, 10453227, 10453261, 10453578, 10453746, 10453951, 10454196, 10454211, 10454539, 10454673, 10455122, 10455150, 10455279, 10455469, 10456285, 10456529, 10457116, 10457644, 10457811, 10458224, 10458485, 10458599, 10458743, 10458846, 10460062, 10460141, 10460732, 10460843

The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.

ON AUGUST 18, 2017, I LEASED-TO-OWN A 2006 CHEVROLET TRAILBLAZER FROM ACTION AUTO OF TUPELO, MS. AROUND THE FIRST WEEK OF OCTOBER OF 2018, I HAD LEND SAID VEHICLE TO MY SISTER. SHE CONTACTED ME SAYING THAT THE ENGINE WAS MAKING A KNOCKING NOISE, AND BROUGHT THE VEHICLE BACK TO ME, WHERE I INSPECTED IT WHILE IT WAS STATIONARY. TO RULE OUT EVERYTHING ELSE BEFORE I ACKNOWLEDGED THE SOUND OF THE KNOCK BEING A SEVERE MECHANICAL FAILURE OF THE ENGINE, I CONNECTED A DIAGNOSTIC SCANNER TO THE CAN DATA CONNECTOR ON THE 2006 CHEVROLET TRAILBLAZER. IN SECONDS THE SCREEN ON THE SCANNER WAS FLOODED WITH FAULTS, BUT THEN THE SCANNER STARTED BEEPING, SAYING THAT THE SRS (SUPPLEMENTAL RESTRAINT SYSTEM) HAD BEEN ACTIVATED. LOOKING AROUND THE VEHICLE I DIDN'T SEE ANY SIGN OF ANY AIRBAG BEING DEPLOYED, OR ANY SEATBELT MISSING. IT WASN'T UNTIL I CHECKED THE CONNECTORS COMING OUT OF THE AIRBAG MODULE THAT I SAW FOR THE FIRST TIME THAT THE AIRBAGS WERE MISSING. I INFORMED MY INSURANCE PROVIDER REGARDING THE ISSUE, WHICH THEY ASSUMED THAT THE VEHICLE WAS IN A CURRENT ACCIDENT. IN WHICH IT WAS NOT. AFTER FURTHER EXPLANATION, THEY CANCELLED THE INSURANCE AS AIRBAG DEPLOYMENT ARE ONE OF THE CRITICAL KEY FACTORS THAT INSURANCE PROVIDERS USE TO DETERMINE WHETHER A VECHICLE IS TOTALED OR NOT. I CONTACTED ACTION AUTO OF OXFORD, MS, THEIR MAIN BRANCH I PRESUME, AND INFORMED THEM OF THE PROBLEM AND TO COME AND RETRIEVE THE VEHICLE AS DRIVING IT WITHOUT INSURANCE IS A VIOLATION OF MISSISSIPPI'S STATE'S LAW, AND THE ENGINE HAD EXPERIENCED SEVERE MECHANICAL FAILURE WHICH MADE IT UNSAFE TO DRIVE. ACTION AUTO RETRIEVED THE VEHICLE, BUT STATED THAT I HAD BROKE PROMISES IN OUR AGREEMENT, AND THAT THE VEHICLE WOULD BE AUCTIONED OFF THIS YEAR, IN WHICH THEY DID. FEDERAL LAW REQUIRES ALL VEHICLES MADE AFTER 1997 ARE EQUIPPED WITH AIRBAGS AND TITLE 49 30112 FORBIDS THE SELL OF A NON-CONFORMING VEHICLE.

NHTSA ID

11219238

Incident

Oct 16, 2018

TRANSMISSION SLIPPING AND SELINOIDS

NHTSA ID

11096393

Incident

May 15, 2018

Mileage

135,000 mi

TAKATA RECALL IF FLUID, SUCH AS MELTED SNOW CONTAINING ROAD SALT, ENTERS THE DRIVER'S DOOR MODULE, IT MAY CAUSE CORROSION THAT COULD RESULT IN A SHORT IN THE CIRCUIT BOARD. A SHORT MAY CAUSE THE POWER DOOR LOCK AND POWER WINDOW SWITCHES TO FUNCTION INTERMITTENTLY OR MAY STOP WORKING. THE DEALERSHIP CANNOT FIX THE VEHICLE DUE TO THE VEHICLE BEING A TOTAL LOSS ON MARCH 1 OF 2015

NHTSA ID

10985099

Incident

Mar 1, 2015

HEADLIGHTS TURN OFF WHILE DRIVING. HAPPENS WITH REGULARITY. HEADLIGHT RELAY DEFECTIVE. NO REPLACEMENT PART AVAILABLE. GM DENIES THAT A RECALL EXISTS. *TR

NHTSA ID

10933867

Incident

Dec 2, 2016

Mileage

200,000 mi

" TAKATA RECALL" GM SAID MY RECALL HAD EXPIRED ON THE FUEL SENSOR IN 2015..I HAD IT REPLACE TWICE...2007 AND 2009...SO MANY RECALLS COULD NOT REMEMBER UNTIL GOING THROUGH FILES AND FOUND I DID HAVE THESE REPLACED

NHTSA ID

10916777

Incident

Jul 10, 2007

Mileage

52,000 mi

TL* THE CONTACT OWNS A 2006 CHEVROLET TRAILBLAZER EXT. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE WOULD STALL AND SHUT OFF WITHOUT WARNING. THE VEHICLE WOULD HAVE TO BE JUMPSTARTED IN ORDER TO RESTART. THE FAILURE RECURRED, BUT THE VEHICLE WOULD NOT RESTART. THE CONTACT TOOK THE VEHICLE TO A CERTIFIED MECHANIC WHO WAS UNABLE TO IDENTIFY THE CAUSE OF THE FAILURE. THE MECHANIC REPLACED THE VEHICLE'S BATTERY, AUXILIARY WATER PUMP, STARTER, AND ALTERNATOR; HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 150,000.

NHTSA ID

10908538

Incident

Sep 5, 2016

Mileage

150,000 mi

BOTH REAR PARKING TAIL LIGHTS DOES NOT TURN ON, WHILE BOTH FRONT PARKING LIGHTS ARE OPERATIONAL. BRAKE LIGHTS, REAR TURN SIGNALS, REVERSE LIGHTS, DOORS UNLOCK LIGHT ARE ALL OPERATIONAL.

NHTSA ID

10904963

Incident

Aug 15, 2016

THE HEADLIGHTS ARE NOT WORKING PROPERLY. SOMETIMES THE HEADLIGHTS WORK BUT OTHER TIMES THEY TURN OFF. THE HIGH BEAMS AND MARKER LIGHTS ARE NOT AFFECTED. THIS ALSO APPLIES TO THE DAYTIME RUNNING LAMPS AND OCCURS IN MOTION OR AT A STOP.

NHTSA ID

10896315

Incident

Aug 6, 2016

Mileage

110,000 mi

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).

This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.